Environment & Safety Gas Processing/LNG Maintenance & Reliability Petrochemicals Process Control Process Optimization Project Management Refining
HomeAuthorsVallavanatt, R.

Vallavanatt, R.

Bechtel Corp., Houston, Texas

Rimon Vallavanatt is the Senior Principal Engineer at Bechtel Corp. in Houston, Texas. He has more than 40 yr of experience in the design, engineering and troubleshooting of fired heaters, thermal oxidizers, boilers and flares. He graduated from the University of Kerala in India with a degree in mechanical engineering. He also received a degree in industrial engineering from St. Mary’s University in San Antonio, Texas. Mr. Vallavanatt is a registered Professional Engineer in the state of Texas, and has served on the American Petroleum Institute’s subcommittee on heat transfer equipment for the past 30 yr.

Optimize transient plant operations with castable-free fired heater

Hydrocarbon Processing / May 2019
Bechtel Corp.: Ahamad, S.  |  Thakur, M.  |  Vallavanatt, R.
Gas Processing/LNG / Petrochemicals / Engineering & Design / Equipment / Heat Transfer

Fired heaters are designed with castable refractory in various sections of the heater.

Transient analysis of fired heater coils to estimate safety time

Hydrocarbon Processing / January 2019
Bechtel Corp.: Ahamad, S.  |  Thakur, M.  |  Izadi, M.  |  Vallavanatt, R.

During the operation of process fired heaters, the potential exists for sudden interruption of process flow.

Revamp fired heaters with a common air-preheating system to increase capacity

Hydrocarbon Processing / August 2017
Bechtel Corp.: Ahamad, S.  |  Vallavanatt, R.
Environment & Safety / Maintenance & Reliability / Construction / Corrosion / Engineering & Design / Environment / Equipment / Heat Transfer / Rotating Equipment / Refining

In any process plant, fired heaters are generally considered to be one of the most optimally designed pieces of equipment.

Successfully design fired heaters using ultra-low-NOx burners

Hydrocarbon Processing / June 2013
Bechtel Corp.: Ahamad, S.  |  Vallavanatt, R.
Petrochemicals / Refining / Americas / Asia/Pacific / Europe / Furnaces / Heat Transfer / Middle East

Recent environmental regulations mandate that refinery and petrochemical industries reduce nitrogen oxide (NOx) emissions. Emissions legislations are constantly under review, and they differ from coun..

Identify and control excess air from process heaters

Hydrocarbon Processing / October 2012
Bechtel Corp.: Ahamad, S.  |  Vallavanatt, R.
Process Optimization / Refining / Americas / Asia/Pacific / Environment / Europe / Furnaces / Heat Transfer / Middle East

Process heaters are the largest consumers of energy in most plants. A refinery, on average, burns approximately 2 billion Btu/hr of fuel in fired heaters. The total quantity of fuel burned (heat relea..

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